Patents by Inventor Masashi Iwata

Masashi Iwata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11962433
    Abstract: A switch device includes a plurality of communication ports; a switch unit configured to relay a frame, which has been transmitted from a function unit and to which information including an ID of a VLAN is added, to another function unit via a communication port; and a duplication unit configured to, when the diagnosis device is connected to another switch device, duplicate the frame to be relayed via a designated communication port among the plurality of communication ports, and generate a duplicate frame for diagnosis that is a frame obtained by adding, to a duplicate frame obtained through the duplication, specific information indicating that the duplicate frame for diagnosis should be transmitted to the diagnosis device. The switch unit outputs the duplicate frame for diagnosis generated by the duplication unit from a communication port corresponding to the other switch device.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: April 16, 2024
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihito Iwata, Tatsuya Izumi, Hirofumi Urayama, Tadashi Matsumoto, Darmawan Go, Hideki Maeda, Takeshi Hagihara, Masashi Amesara, Hisashi Furukawa, Shu Ishizuka, Hideki Goto
  • Publication number: 20230275563
    Abstract: [PROBLEM TO BE SOLVED] To provide a bulk wave resonator having a high frequency passband. [SOLUTION] A bulk wave resonator using a bulk wave, includes a support substrate, an acoustic multilayer film that includes, stacked on the support substrate, a plurality of types of dielectrics having different acoustic impedances, a piezoelectric layer that is stacked on the acoustic multilayer film, a first electrode, and a second electrode. The first and second electrodes are disposed to face each other with a gap therebetween on a first surface of the piezoelectric layer opposite to the acoustic multilayer film, and are applied with a voltage for allowing the piezoelectric layer to generate the bulk wave. A direction that is parallel to the surface of the piezoelectric layer and in which the first electrode and the second electrode face each other is defined as a first direction.
    Type: Application
    Filed: March 18, 2021
    Publication date: August 31, 2023
    Inventors: Hiroshi HASEGAWA, Masashi IWATA, Takumi OZAKI, Kiyoshi NAKAMURA
  • Patent number: 11293944
    Abstract: The test socket includes a fifth housing 15 located in a central part of contact terminals 21 in an axial direction and having electrical conductivity, plural through-holes 15c being formed in the fifth housing 15 to pass the respective contact terminals 21 therethrough; a sixth housing 16 stacked in the axial direction on the fifth housing 15, passage holes being formed in the sixth housing 16, the passage holes being configured to position the contact terminals 21 in a direction orthogonal to the axial direction; and an eighth housing 18 having electrical conductivity and stacked in the axial direction by sandwiching the sixth housing 16 between the eighth housing 18 and fifth housing 15, wherein the sixth housing 16 is provided with through-vias configured to form a conductive path in the axial direction.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: April 5, 2022
    Assignee: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Yuji Nakamura, Masashi Iwata
  • Patent number: 10763597
    Abstract: A crimp terminal includes a terminal connection portion electrically connected to a counterpart terminal; and a plate-shaped electric wire connection portion electrically connected to an end portion of an electric wire placed on an inner wall surface side by a crimping process during which the electric wire connection portion is sandwiched between a first die and a second die. The electric wire connection portion includes a bottom on which the end portion of the electric wire is placed in the crimping process, and first and second barrel pieces that are extended from both ends of the bottom and are rolled to a region from a tip core to a coating at an end portion of the electric wire by the crimping process.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: September 1, 2020
    Assignee: YAZAKI CORPORATION
    Inventor: Masashi Iwata
  • Patent number: 10534033
    Abstract: When each signal line contact terminal (10ai) is installed in a base member (30), an upper housing (28), and a lower housing (26), the upper housing (28) is installed together in such a way as to be sandwiched between the base member (30) and the lower housing (26). Here, collars (16) are fitted on outer peripheral portions of a first extending portion (52A) and a second extending portion (52C) of the signal line contact terminal (10ai), respectively. Moreover, air layers are formed between an outer peripheral portion of a drum portion (52B) of the signal line contact terminal (10ai) and an inner peripheral surface forming a hole (28b), between an outer peripheral portion of the first extending portion (52A) and an inner peripheral surface forming a hole (30b), between an outer peripheral portion of the second extending portion (52C) and an inner peripheral surface forming a hole (26b), and between an outer peripheral portion of a plunger (56) and an inner peripheral surface forming a hole (26e).
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: January 14, 2020
    Assignee: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Yuji Nakamura, Masashi Iwata
  • Patent number: 10511131
    Abstract: A terminal crimping device includes a terminal feeding device, a crimping device and an electric-wire holding mechanism that holds an electric wire with an end portion of the electric wire placed above an electric-wire connecting portion of a crimp terminal. The electric-wire holding mechanism includes an upper surface of a terminal cutting body, on which the electric wire is placed, and an electric-wire presser that is moved downward toward the upper surface and presses and thereby holds the electric wire placed on the upper surface. Between the electric-wire placing portion and a lower surface of the electric-wire presser, an electric-wire holding space is formed that inclines in the same direction to a declining direction in which the end portion of the electric wire is declined in association with downward move of the second die toward the first die, and that holds the electric wire in a thus inclined state.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: December 17, 2019
    Assignee: YAZAKI CORPORATION
    Inventors: Hikaru Anma, Masashi Iwata, Hideki Saito, Naoki Ito
  • Patent number: 10490964
    Abstract: A method of manufacturing a crimping terminal includes a punching process of punching out a crimping terminal from a flat-plate-shaped metal base material, an attaching process of attaching a sheet-like water stop member to a wire connection portion being a portion in the crimping terminal that is to be crimped onto a wire, and a bending process of bending the wire connection portion to which the water stop member is attached. The wire connection portion may integrally cover a core wire and a covering of the wire by being crimped onto the wire.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: November 26, 2019
    Assignee: YAZAKI CORPORATION
    Inventors: Koichi Ikebe, Masashi Iwata, Junya Shinohara, Hirohito Nakata, Hideki Saito, Syunsuke Yaoita
  • Publication number: 20190302144
    Abstract: The test socket includes a fifth housing 15 located in a central part of contact terminals 21 in an axial direction and having electrical conductivity, plural through-holes 15c being formed in the fifth housing 15 to pass the respective contact terminals 21 therethrough; a sixth housing 16 stacked in the axial direction on the fifth housing 15, passage holes being formed in the sixth housing 16, the passage holes being configured to position the contact terminals 21 in a direction orthogonal to the axial direction; and an eighth housing 18 having electrical conductivity and stacked in the axial direction by sandwiching the sixth housing 16 between the eighth housing 18 and fifth housing 15, wherein the sixth housing 16 is provided with through-vias configured to form a conductive path in the axial direction.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 3, 2019
    Applicant: Yamaichi Electronics Co., Ltd.
    Inventors: Yuji NAKAMURA, Masashi IWATA
  • Patent number: 10355375
    Abstract: A terminal-equipped electrical wire includes a water-blocking material disposed between an inner side surface of an electrical wire connecting portion and a core wire to cover a distal end of the core wire, and the electrical wire connecting portion includes a bottom portion, a first crimping piece wrapped around the electrical wire, a second crimping piece wrapped around an outer side of the first crimping piece, and a plate-shaped protruding piece protruding from a side surface of the first crimping piece or the second crimping piece in an axial direction of the electrical wire, and the protruding piece is bent from a proximal end portion such that the protruding piece is closer to the distal end of the core wire toward a distal end side from a proximal end side of the protruding piece, and blocks at least a part of an opening of the electrical wire connecting portion.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: July 16, 2019
    Assignee: YAZAKI CORPORATION
    Inventors: Masashi Iwata, Junya Shinohara
  • Publication number: 20190013595
    Abstract: A terminal-equipped electrical wire includes a water-blocking material disposed between an inner side surface of an electrical wire connecting portion and a core wire to cover a distal end of the core wire, and the electrical wire connecting portion includes a bottom portion, a first crimping piece wrapped around the electrical wire, a second crimping piece wrapped around an outer side of the first crimping piece, and a plate-shaped protruding piece protruding from a side surface of the first crimping piece or the second crimping piece in an axial direction of the electrical wire, and the protruding piece is bent from a proximal end portion such that the protruding piece is closer to the distal end of the core wire toward a distal end side from a proximal end side of the protruding piece, and blocks at least a part of an opening of the electrical wire connecting portion.
    Type: Application
    Filed: June 11, 2018
    Publication date: January 10, 2019
    Inventors: Masashi Iwata, Junya Shinohara
  • Publication number: 20180261931
    Abstract: A crimp terminal includes a terminal connection portion electrically connected to a counterpart terminal; and a plate-shaped electric wire connection portion electrically connected to an end portion of an electric wire placed on an inner wall surface side by a crimping process during which the electric wire connection portion is sandwiched between a first die and a second die. The electric wire connection portion includes a bottom on which the end portion of the electric wire is placed in the crimping process, and first and second barrel pieces that are extended from both ends of the bottom and are rolled to a region from a tip core to a coating at an end portion of the electric wire by the crimping process.
    Type: Application
    Filed: May 14, 2018
    Publication date: September 13, 2018
    Applicant: Yazaki Corporation
    Inventor: Masashi IWATA
  • Publication number: 20180238957
    Abstract: When each signal line contact terminal (10ai) is installed in a base member (30), an upper housing (28), and a lower housing (26), the upper housing (28) is installed together in such a way as to be sandwiched between the base member (30) and the lower housing (26). Here, collars (16) are fitted on outer peripheral portions of a first extending portion (52A) and a second extending portion (52C) of the signal line contact terminal (10ai), respectively. Moreover, air layers are formed between an outer peripheral portion of a drum portion (52B) of the signal line contact terminal (10ai) and an inner peripheral surface forming a hole (28b), between an outer peripheral portion of the first extending portion (52A) and an inner peripheral surface forming a hole (30b), between an outer peripheral portion of the second extending portion (52C) and an inner peripheral surface forming a hole (26b), and between an outer peripheral portion of a plunger (56) and an inner peripheral surface forming a hole (26e).
    Type: Application
    Filed: August 23, 2016
    Publication date: August 23, 2018
    Applicant: YAMAICHI ELECTRONICS CO., LTD.
    Inventors: Yuji NAKAMURA, Masashi IWATA
  • Publication number: 20180109059
    Abstract: A method of manufacturing a crimping terminal includes a punching process of punching out a crimping terminal from a flat-plate-shaped metal base material, an attaching process of attaching a sheet-like water stop member to a wire connection portion being a portion in the crimping terminal that is to be crimped onto a wire, and a bending process of bending the wire connection portion to which the water stop member is attached. The wire connection portion may integrally cover a core wire and a covering of the wire by being crimped onto the wire.
    Type: Application
    Filed: September 25, 2017
    Publication date: April 19, 2018
    Inventors: Koichi Ikebe, Masashi Iwata, Junya Shinohara, Hirohito Nakata, Hideki Saito, Syunsuke Yaoita
  • Patent number: 9882290
    Abstract: A crimp terminal includes a terminal connecting portion, an electric wire connecting portion, and a coupling portion. The electric wire connecting portion is formed with a first barrel piece and a second barrel piece, the two facing each other, by bending processing on an electric wire side plate-shaped portion after two facing walls are formed by bending processing on a terminal side plate-shaped portion. The coupling portion is formed with two facing side walls by bending processing on a coupling side plate-shaped portion. Certain portions that will be the side walls later are formed with at least one tensile force absorbing portion that absorbs a tensile force between the terminal side plate-shaped portion side and the electric wire side plate-shaped portion side occurring during the bending processing on the terminal side plate-shaped portion.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: January 30, 2018
    Assignee: YAZAKI CORPORATION
    Inventors: Junya Shinohara, Masashi Iwata, Kazuto Ohtaka
  • Patent number: 9812278
    Abstract: A complex type fusible link which includes an insulative block base including a plurality of cavities; a conductive connecting plate which is integrally embedded in the insulative block base, a part of the conductive connecting plate being exposed to at least one of the cavities; a plurality of fusible elements each of which is accommodated in corresponding one of the cavities and includes a first end which is connected to the part of the conductive connecting plate and a second end; and a plurality of terminals each of which is integrally embedded in the insulative block base and includes a first end which is connected to the second end of corresponding one of the fusible elements and a second end which is exposed from the insulative block base, at least one of the fusible elements includes a fastening portion to which another fusible element is fastened.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: November 7, 2017
    Assignee: YAZAKI CORPORATION
    Inventors: Masashi Iwata, Norio Matsumura, Tatsuya Aoki, Kenya Takii
  • Patent number: 9774100
    Abstract: A terminal fitting includes a terminal connecting portion and an electric wire connecting portion. A water stop member is affixed to an inner wall surface of the electric wire connecting portion before crimping process and suppresses entering of water between the electric wire connecting portion and a core wire of the electric wire after the crimping. The electric wire connecting portion is formed into a U-shape by raising the first barrel piece and the second barrel piece from both ends of the bottom. The distal end of the first barrel piece is bent toward the second barrel piece, to form a gap between a slide contact surface on a descending second die and the distal end of the first barrel piece.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: September 26, 2017
    Assignees: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junya Shinohara, Masashi Iwata, Kazuto Ohtaka, Hiroshi Kobayashi, Hiroyasu Taga, Motoya Hara, Hirohito Nakata, Kazuhide Takahashi, Takato Yoshida
  • Publication number: 20170179615
    Abstract: A terminal fitting includes a terminal connecting portion and an electric wire connecting portion. A water stop member is affixed to an inner wall surface of the electric wire connecting portion before crimping process and suppresses entering of water between the electric wire connecting portion and a core wire of the electric wire after the crimping. The electric wire connecting portion is formed into a U-shape by raising the first barrel piece and the second barrel piece from both ends of the bottom. The distal end of the first barrel piece is bent toward the second barrel piece, to form a gap between a slide contact surface on a descending second die and the distal end of the first barrel piece.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 22, 2017
    Applicants: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junya SHINOHARA, Masashi IWATA, Kazuto OHTAKA, Hiroshi KOBAYASHI, Hiroyasu TAGA, Motoya HARA, Hirohito NAKATA, Kazuhide TAKAHASHI, Takato YOSHIDA
  • Publication number: 20170179616
    Abstract: A terminal crimping device includes a terminal feeding device, a crimping device and an electric-wire holding mechanism that holds an electric wire with an end portion of the electric wire placed above an electric-wire connecting portion of a crimp terminal. The electric-wire holding mechanism includes an upper surface of a terminal cutting body, on which the electric wire is placed, and an electric-wire presser that is moved downward toward the upper surface and presses and thereby holds the electric wire placed on the upper surface. Between the electric-wire placing portion and a lower surface of the electric-wire presser, an electric-wire holding space is formed that inclines in the same direction to a declining direction in which the end portion of the electric wire is declined in association with downward move of the second die toward the first die, and that holds the electric wire in a thus inclined state.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 22, 2017
    Inventors: Hikaru Anma, Masashi Iwata, Hideki Saito, Naoki Ito
  • Publication number: 20170179620
    Abstract: A crimp terminal includes a terminal connecting portion, an electric wire connecting portion, and a coupling portion. The electric wire connecting portion is formed with a first barrel piece and a second barrel piece, the two facing each other, by bending processing on an electric wire side plate-shaped portion after two facing walls are formed by bending processing on a terminal side plate-shaped portion. The coupling portion is formed with two facing side walls by bending processing on a coupling side plate-shaped portion. Certain portions that will be the side walls later are formed with at least one tensile force absorbing portion that absorbs a tensile force between the terminal side plate-shaped portion side and the electric wire side plate-shaped portion side occurring during the bending processing on the terminal side plate-shaped portion.
    Type: Application
    Filed: December 15, 2016
    Publication date: June 22, 2017
    Applicant: Yazaki Corporation
    Inventors: Junya SHINOHARA, Masashi IWATA, Kazuto OHTAKA
  • Patent number: 9502793
    Abstract: Provided is an assembly structure of an electrical junction box which makes it possible to fit an electrical component attachment block into an insulation case without provision of a lock mechanism. Included are a housing (15) provided in an insulation case (5) and configured to house an electrical component attachment block (7); contact walls (19, 20) provided in an inner wall of the housing (15), and configured to come into contact with the housed electrical component attachment block (7); a terminal receiving portion (23) provided to the insulation case (5), on which to place a connection terminal (8); and a fastening module (9) configure to screw-fix the connection terminal (8) placed on the terminal receiving portion (23) to a conduction bus bar (37) in the electrical component attachment block (7) housed in the housing (15).
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: November 22, 2016
    Assignee: YAZAKI CORPORATION
    Inventors: Masashi Iwata, Mami Nohara